Countable Nouns Starting with OR and Containing OM

Browse 13 valid English countable nouns starting with OR and containing OM, from Orchiectomy, Ornithomimid, Organometallic, Orchidectomy, Organometallics, Orthomyxovirus and Organomercurial to rarer terms. Check definitions and spelling below, or visit our noun grammar guide to review singular and plural count rules.

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Starts with ORC4 words
orchiectomy
orchidectomy
orchidomaniac
orchiencephaloma
Starts with ORG3 words
organometallic
organometallics
organomercurial
Starts with ORN3 words
ornithomimid
ornithomimosaur
ornithomorph
Starts with ORO
1 words
orometer
Starts with ORT
2 words
orthomyxovirus
orthodromy

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